Can anyone answer a query regarding Seaham Harbour and it's multitude of Irish Immigrants during the mid 1800s? I'm aware that the Irish Potato Famine resulted a mass exodus to England and the New World; I am surmising that many were attracted to Seaham Harbour as this was the home of the Marquis of Londonderry who held lands in Ireland. Can anyone tell me the areas of Ireland where Londonderry held lands? Was it just County Derry? Does anyone know if this was the definite reason so many Irish migrated to Seaham Harbour? Are there records suggesting that he "advertised" for labourers to leave his Irish Estates to work in his harbour and factories in Seaham? Thanks. Rob